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Industry Glossary Term

Utility Relocation

The process of moving existing underground or overhead utilities — such as gas lines, water mains, or electrical conduits — to accommodate new construction or pipeline work. Subcontractors are often hired specifically for this scope, which requires utility locates and coordination with municipal or utility owners. Delays in relocation can directly impact your crew's mobilisation schedule and project milestones.

Related Terms

Private Activity Bonds

Industry

Tax-exempt bonds issued by governments to finance private infrastructure projects like pipelines or terminals. Subcontractors may work on bond-funded projects, which often carry strict procurement and reporting requirements. Understanding this can affect how you bid and invoice on qualifying jobs.

Cleanout

Industry

A service job focused on removing debris, scale, or obstructions from a wellbore, tank, or pipeline. Subcontractors are often mobilised on short notice to perform cleanouts between production phases. Accurate job scoping is critical, as unforeseen material volumes can affect your quoted price.

FPSO (Floating Production, Storage and Offloading Unit)

Industry

A ship-shaped offshore vessel that processes and stores crude oil or gas directly at sea, then transfers it to tankers — for subcontractors, FPSOs represent remote, long-duration worksites with strict offshore safety certification requirements, specialised crew rotation logistics, and scope that can span topside maintenance, marine systems, and instrumentation work simultaneously.

Tieback

Industry

A structural anchor or connection point used to secure equipment, pipelines, or wellheads back to an existing infrastructure system, commonly referenced in subcontractor scopes of work when connecting new installations to live or existing lines. Subcontractors should confirm tieback specifications and isolation procedures clearly in their contracts, as this work often involves elevated risk and may require additional certifications or permits.

Abrasive Blasting

Industry

A surface preparation method that uses high-pressure propelled media (sand, steel grit, or slag) to clean and profile metal surfaces before coating or painting. Subcontractors performing this work typically require specialised equipment, trained operators, and site-specific permits. It is common in pipeline, vessel, and structural steel maintenance scopes.

Tubular Management Services

Industry

The tracking, inspection, storage, and handling of oilfield pipe and casing on behalf of operators or drilling contractors. Subcontractors providing these services manage inventory, thread protection, and condition reporting at wellsite or yard facilities. Scope often includes running tally sheets, third-party inspections, and coordinating pipe delivery to rig floor.

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